SPIN FILTER SPINTRONIC DEVICES

摘要

A spin filter transistor having a semiconductor structure. A spin injector including a first spin filter tunnel barrier is positioned on the semiconductor structure. A spin detector including a second spin filter tunnel barrier is positioned on the semiconductor. Highly polarized spins injected from the spin injector are transported through the semiconductor structure, and are detected at the spin detector. The magnitude of the spin current depends on the relative magnetic alignment of the first spin filter tunnel barrier and the second spin filter tunnel barrier.